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Kelly,<br>
<br>
IMC Instruments makes a few differential controllers that have the ability<br>
to provide data output for logging & analysis.<br>
I have installed one, but have not yet done any data logging; it looks<br>
promising.<br>
<br>
<a href="http://www.imcinstruments.com/Home/Eagle-2%20Group%206-17-08w.pdf">http://www.imcinstruments.com/Home/Eagle-2%20Group%206-17-08w.pdf</a><br>
<br>
YMMV<br>
<br>
Regards,<br>
<br>
Glenn Burt<br>
Technical Specialist<br>
Renewable Power Systems, LLC<br>
PO Box 967<br>
Averill Park, NY 12018<br>
V: 518-674-5808<br>
C: 518-810-3174<br>
F: 518-514-1175<br>
E: <a href="mailto:gburt@RPSPower.com">gburt@RPSPower.com</a><br>
<a href="www.RPSpower.com">www.RPSpower.com</a><br>
<br>
<br>
<br>
-----Original Message-----<br>
From: <a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a><br>
[mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>] On Behalf Of Kelly<br>
Keilwitz, Whidbey Sun & Wind<br>
Sent: Friday, November 14, 2008 9:51 AM<br>
To: RE Wrenches listserve<br>
Subject: [RE-wrenches] SWH data logging<br>
<br>
Thermal wrenches,<br>
We have a customer who wants to log the energy gain of his SHW system.<br>
The only viable option we've found is by Resol (also rebranded by Caleffi)<br>
which includes their top-line controller (~$280) in conjunction with their<br>
data logger, DL-2 ($500). With markup and installation this system will cost<br>
our customer over $1K.<br>
<br>
Are there any other AFFORDABLE options out there, that include data logging<br>
to a computer or web interface?<br>
<br>
Thanks,<br>
-Kelly<br>
<br>
Kelly Keilwitz, P.E.<br>
Whidbey Sun & Wind, LLC<br>
Renewable Energy Systems<br>
NABCEP Certified PV Installer<br>
987 Wanamaker Rd,<br>
Coupeville, WA 98239<br>
PH & FAX 360-678-7131<br>
<a href="mailto:sunwind@whidbeysunwind.com">sunwind@whidbeysunwind.com</a><br>
<br>
<br>
<br>
<br>
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